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110.75176. PATBNTBDMAR. .3, 186s.

J. H. MARTIN. SCAFFOLDING FOR BUILDINGS.. l

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Jie-'MES AHMM-A R'fijI- Nt- O-'FsG-OLUMB'S? OHIO- 'g Letters Patent No.'75,176, dated March 3, 1868 annotated .February 22', 186.5z

IMPROVEMENT sonrroLoINe'ron BUILDINGS.

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Be it known that-LzJaMns H. MsnrrN, of r`("iciluinbns, in .the countyofA Franklin, and -State of Ohio, have invented certain new and-usefulImprovements in Scaoldings forBuil'dingsj land I do =hereby declare thatthe 4following is a`fnll, ciear, and exact-description of the same,reference-being had to theaccompanying'v drawings,.` making a portion'of this spec'iiicatiom'n whicho Figure 1 is a frontvview of a scaolding'constructed according to my. invention. JiignreZ is a central'verticaltransverse section .of the same. Figure 3 is a plan view of the same.

-'IEigures-fi and 5 are detached views, showing a'modiiicution of oneportionl .of -the invention. Similar letters -of referenceindicatecorresponding parte iny all lthe figures.

The object of this invention isto provide a. scadolding-for the use ofbuilders, carpenters, Ste., which may be readily applied tothe walls ofeither new or old buildings, and'wbich will not only serve all thopurposes of anordinary scaiolding, but also greatly facilitate thehoisting of brick, mortar, and other materials, asl required inbuildin'glperations. Y l' The invention consistsin the. construction ofthe detachable supporting-brackets 'of the scaffolding with slottedsnspensionlplates, wherebythe said brackets may be readily suspendedfrom suitable .hooks xed in 'I the wall'lto whichjthe scaifolding is tobe applied."

The invention further consists in the combination, with such brackets ofbars placed in the joints ofl the we1l,.a`nd. properly braced, whereby avery firm support'for the aforesaid brackets, or, in other words, forthescafolding, is secured. t v

The invention further consists in a no vel arrangement of ahoisting-frame, with reference tothe brackets,A whereby the ease andconvenience with which building-materials may be raised to thescaffolding arevery mate rially increased. i 1 v To enable others' tounderstand the nature and construction of my invention, I will proceedto describeit withreference to the drawings. l vl A represents the wallof an unfinished building, and B the sleepers otl theiloor thereof.Inserted in the joints or spaces between the bricks ht the top of thewall, at suitable distances apart, are bars a, made prefer' ably ofwrought iron, and with their ends projecting -out beyond the sides ofthe walls, as shown in iigs.- 2 and 3, each of the said ends beingnotched at its upper side, se as to form a kind of hook, as indicatedvat-a. in iig. 2. .The end, 6', of each of these bars a is Vpassedthrough a suitableslot in the upper end-cfa verti-` cal rod, b, thelower end of which is spiked fastto the 'side oftheivall` c representsan`- inclined rod, the upper end of which is hooked into a hole 'in theend last mentioned of the aforesaid bars '91., and thelowerv-extremity'of which is figred to the sleepers B of the iioor.,Theso'rods I) c constitute braces, the tension of which holdsthe barsaintheirl places against the strain exerted thereon bythe brackets 0'.'The saidv brackets,

which may be made of suitable timber, and'of the form represented morefully in fig. '2, are provided Iat their upper inner corners withplates-c, formed with-vertical slots'or holes, into which are hooked theends aof the barsa, as shown more clearly in the figure just mentioned,the brackets bcing'lby this means suspended upon thewall, their lowerends being preircnted from swinging laterally out oi their placesby'being spiked to-the .wall, or'by any other suitable means. Boards f,placed horizontally upon the' brackets, consttute the -ilooring of thescafolding, which, when desired, may befdivided into compartments forthe reception o i' 'b rick, mortar, orother material, by boardsg, placedon edge. The outer ends of the aforesaid brackets, may`be'pr0vided withso'cke'ts which receive the .lower ends of the posts d of detachablepanels .E, which serveA as guards to, prevent persons or material fromfalling olf from the scaffolding. Situatedbetwcen'lthe oute'r ends ofthe.

' brackets isa vertical hoistingframe, D, provided at its-upper end witha hook or staple, z, to which isattached a'suitable hoistingth ckle,-for raising the building-materials to the scaffolding. When-the weightofthe mate' riale to be raised is'very considerable, the hoisting-frameshould extend downward,.so that its lower. end Imay rest 'upon theground, as shown in iig'. 1, and also in red outline in iig. v2;l butwhen the weightto be elevated il comparatively moderate, thehoisting-frame may haveits. lower end attached dircctlyto thebrackets,with

out .any other support than that afforded bythe said brackets, the saidframe, 4in either case, being secured to the brackets by detachablebolts y. v

When it is desired to .attach the scaffolding to old walls in caseswhere the 'use of the bars a would' be inadmissible, the slotted-platese of the brackets are nttached to hooks m. The shank /m"of ca ch of thesaid hooks has its inner end fn ltin-ned at right anglesthereto, and isinserted .into a. hole formed in the wall by any suitable means,'in suchmanner that while the'mainI length of the said'shank is situated in one"of the horizontal jointsbetween 'the bricks of the wall, the inner end nthereof will be brought or hooked into theudja'cent verticalfjoint, andthus sustain the hook againstV the strain exerted upon it' by thebracket attachedA thereto. Y

What claim as my' invention, and desire to secure by Letters Patent, is-

1`. The eombnetion', with the brackets C, of the bars a, fitted intoAthe joints of the well, and braced by suitable tension-braces, c,ngeinst the strain exerted thereon by 'the aforesaid brackets,substantially es and for the purpose specified." I

.2. The arrangement. of a removable hoisting-frame, D, with reference tothe scaffold constructed with detachable supporting-brackets c',substantially as and for the purpose specified.

JAMES H. MARTIN.

Witnesses: A

R. S.,Gook, GEO, W. Mnnxnn.

